19-5554; Rev 1; 10/11
Satellite IF Switch
The MAX12005 satellite IF switch IC is designed for
multi-user applications supporting two quad universal
low-noise blocks (LNBs) to be matrix switched to four
satellite receivers. The system can be easily expanded
to accept 16 satellite IF inputs using the cascade option
and one additional satellite IF switch IC. A configuration
of eight satellite IF inputs to eight satellite receivers is
also possible by using two ICs and adding eight input
splitters. The insertion loss of these splitters can be com-
pensated by a +6dB or +12dB input gain select.
There are two ways to control the switch function.
Each IC contains four DiSEqCK 2.0 decoders and four
alternate tone/voltage decoders. The decoders use an
integrated trimmed oscillator, simplifying the MAX12005
implementation into any system. There are four opera-
tional modes, which include LNB mode (for use within
the LNB), cascade master mode, cascade slave mode,
and single mode.
The satellite IF switch is designed on an advanced SiGe
process and is available in a lead-free 48-pin TQFN
surface-mount package (7mm x 7mm).
Direct Broadcast Satellite Receivers
Satellite IF Distribution
S 8-Input-to-4-Output Matrix Switch
S Expandable to 16 Inputs with Cascade Master/
S 950MHz to 2150MHz Operation
S Greater than 30dB Switch Isolation
S 0/+6/+12dB Input Stage Gain Selection to
Compensate for Splitter Insertion Loss
Gain Step for All Input Stages Is Commonly
Controlled Through an Analog Select Pin
S Four Integrated DiSEqC 2.0 Decoders with
S Alternate Tone/Voltage Detection
S ESD Protected to 2kV HBM
MAX12005ETM+ -40NC to +85NC
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed paddle.
DiSEqC is a trademark of EUTELSAT.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.